//Code to chk proper e mail type
function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   alert("Enter a Valid E-mail ID")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Enter a Valid E-mail ID")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Enter a Valid E-mail ID")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Enter a Valid E-mail ID")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Enter a Valid E-mail ID")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Enter a Valid E-mail ID")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Enter a Valid E-mail ID")
		    return false
		 }

 		 return true					
	}

// form validation code
function validate()
{
	var name=document.form1.realname;
	var email=document.form1.email;
	var comment=document.form1.comments;
	
	
	if ((name.value==null)||(name.value=="")){
		alert("Please Enter your Name");
		name.focus();
		return false;
	}
	if ((email.value==null)||(email.value=="")){
		alert("Please Enter your E-Mail ID");
		email.focus();
		return false;
	}
	if (echeck(email.value)==false){
		email.value="";
		email.focus();
		return false
	}
	if ((comment.value==null)||(comment.value=="")){
		alert("Please Enter your Comment");
		comment.focus();
		return false;
	}
	else
	document.form1.submit();
	return true;
}